adding a quickie to a s.e.x.

[mcandmar]

For the SEX amp those are the tubes you want, Sylvania black plates with the cut away top supports.  They are hard to find though i have seen them rebaged as a few other brands.  The grey plates are identical to GE or RCA, cant remember which.

On the Quickie tubes, were they the early ones in the green box's, or the later yellow/black box, or JAN stock?

[boulos]

The Quickie tubes are SC JAN tubes labeled RMA-3S4 (radio manufacturer's association, which changed it's name in the 50's) from Galvin Inc (the current Motorola, which apparently made the first car radio).  So these are probably from the 40's.

[boulos]

BTW, I just checked and I have coin-base tubes with the same construction from Ratheon. I remember finding them noisy (almost like too much gain).  I should give them another shot.

[mcandmar]

That's good to know, i'll keep an eye out for them.

Thanks,

Mark